I'll start from the beginning on this 'un. At the start of the week, the car/spanner light came on and the car lost power. Referred to the owners handbook, and it described this as a sensor failure light. I checked this when I got home and when I restarted the car the light had gone out. Drove the car and it was back to full power, pulling like a train uphill etc.. However, since then the fuel consumption seems to be quite heavy, 82 miles to 3 gallons of diesel is not great (28mpg), any one got any ideas???